Insulating a home costs £2000 and saves £50 a year. What is the payback time?

40 years.

LT
Answered by Leo T. Physics tutor

3644 Views

See similar Physics GCSE tutors

Related Physics GCSE answers

All answers ▸

Calculate the total resistance across AB; between A and B are two parallel branches, one branch with a 3 Ohm and a 5 Ohm resistor, the other branch with a 4 Ohm resistor.


How to use fleming's left hand rule.


It takes 4200 Joules to heat up 1 kg of water by 1 C^o. If you have a kettle with a power of 2500 Watts, how long will it takes to boil 0.8 kg of water from an initial temperature of 25 C^o to the nearest second??


What is the law of conservation of energy?


We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

MyTutor is part of the IXL family of brands:

© 2025 by IXL Learning